K509M94 Forged Dome Piston Set, 3.701" Bore, 10.13:1 CR

The Wiseco K509M94 is a high-performance set of forged dome pistons engineered for Toyota 20R 2.2L 8V engines, specifically found in the Celica. These pistons are forged from 4032 Aerospace alloy, providing superior strength and reliability for demanding applications. They feature a 3.701-inch bore, a 3.504-inch crankshaft stroke, a 5.827-inch rod length, and a compression height of 1.533 inches. The dome piston design results in a 10.13:1 compression ratio, and they utilize a 22mm wrist pin. The set comes complete with a performance piston ring set. Wiseco pistons are manufactured using advanced design technology and incorporate features like HD2 severe duty forging for heavy horsepower applications, ArmorGlide skirt coating as a standard feature, and strutted forging for improved strength. ArmorPlating is also available on select applications.